document.write( "Question 308861: How much water must be added to dilute 10 quarts of a solution that is 18% iodine so that the resulting solution will be 15% iodine?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #220851 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How much water must be added to dilute 10 quarts of a solution that is 18% iodine so that the resulting solution will be 15% iodine?
\n" ); document.write( "----------------------------------------------
\n" ); document.write( "Equation:
\n" ); document.write( "iodine + iodine = iodine
\n" ); document.write( "0.18*10 + 0*x = 0.15(10+x)
\n" ); document.write( "---
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "18*10 + 0 = 15*10+15x
\n" ); document.write( "3*10 = 15x
\n" ); document.write( "x = 2 quarts (amount of water needed in the mixture)
\n" ); document.write( "=====================================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );